<?xml version="1.0" encoding="UTF-8"?>
        <configuration scan="true" scanPeriod="2 seconds">

            <include resource="org/springframework/boot/logging/logback/base.xml"/>
            <jmxConfigurator/>

            <logger name="org.springframework" level="INFO"/>
            <logger name="org.springframework.web.filter.CommonsRequestLoggingFilter" level="DEBUG"/>
            <logger name="com.mypackage" level="WARN"/>

            <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
                <encoder>
                    <pattern>
                        %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
                    </pattern>
                </encoder>
            </appender>

            <turboFilter class="ch.qos.logback.classic.turbo.DynamicThresholdFilter">
                <Key>dynamicLogLevel</Key>
                <DefaultThreshold>DEBUG</DefaultThreshold>
                <MDCValueLevelPair>
                    <value>dynamicLogLevelDEBUG</value>
                    <level>DEBUG</level>
                </MDCValueLevelPair>
                <!-- dynamicLogLevelERROR for testing -->
                <MDCValueLevelPair>
                    <value>dynamicLogLevelERROR</value>
                    <level>ERROR</level>
                </MDCValueLevelPair>
            </turboFilter>

 .....
</configuration>

<configuration scan="true" scanPeriod="2 seconds">
    <springProperty name="yourVar" source="key.of.your.yaml.property"/>

    ...${yourVar}...

<property file="${HOME}/configuration/application.yaml"/>

LOG_FILE : C:/logs

<appender name="MY_APPENDER" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_FILE}</file>

...

</appender>

<configuration scan="true" scanPeriod="10 seconds">